import {z} from 'zod'

export type GetApiCosmosGovV1beta1ProposalsArgs = {proposalStatus?: ('PROPOSAL_STATUS_UNSPECIFIED' | 'PROPOSAL_STATUS_DEPOSIT_PERIOD' | 'PROPOSAL_STATUS_VOTING_PERIOD' | 'PROPOSAL_STATUS_PASSED' | 'PROPOSAL_STATUS_REJECTED' | 'PROPOSAL_STATUS_FAILED') | undefined, voter?: string | undefined, depositor?: string | undefined, 'pagination.key'?: string | undefined, 'pagination.offset'?: unknown | undefined, 'pagination.limit'?: unknown | undefined, 'pagination.countTotal'?: boolean | undefined, 'pagination.reverse'?: boolean | undefined};

export type GetApiCosmosGovV1beta1ProposalsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const getApiCosmosGovV1beta1ProposalsResponse = z.object({proposals: z.array(z.object({proposalId: z.string().optional(), content: z.object({"@type": z.string().optional()}).and(z.record(z.string(), z.unknown())).optional(), status: z.enum(["PROPOSAL_STATUS_UNSPECIFIED", "PROPOSAL_STATUS_DEPOSIT_PERIOD", "PROPOSAL_STATUS_VOTING_PERIOD", "PROPOSAL_STATUS_PASSED", "PROPOSAL_STATUS_REJECTED", "PROPOSAL_STATUS_FAILED"]).optional(), finalTallyResult: z.object({yes: z.string().optional(), abstain: z.string().optional(), no: z.string().optional(), noWithVeto: z.string().optional()}).optional(), submitTime: z.string().optional(), depositEndTime: z.string().optional(), totalDeposit: z.array(z.object({denom: z.string().optional(), amount: z.string().optional()})).optional(), votingStartTime: z.string().optional(), votingEndTime: z.string().optional()})).optional(), pagination: z.object({nextKey: z.string().optional(), total: z.string().optional()}).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Proposals queries all proposals based on given status.
 * 
 * GET /cosmos/gov/v1beta1/proposals
 */
export const getApiCosmosGovV1beta1Proposals = async (args: GetApiCosmosGovV1beta1ProposalsArgs, options: GetApiCosmosGovV1beta1ProposalsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.proposalStatus != null) query.append("proposalStatus", String(args.proposalStatus))
if (args.voter != null) query.append("voter", String(args.voter))
if (args.depositor != null) query.append("depositor", String(args.depositor))
if (args['pagination.key'] != null) query.append("pagination.key", String(args['pagination.key']))
if (args['pagination.offset'] != null) query.append("pagination.offset", String(args['pagination.offset']))
if (args['pagination.limit'] != null) query.append("pagination.limit", String(args['pagination.limit']))
if (args['pagination.countTotal'] != null) query.append("pagination.countTotal", String(args['pagination.countTotal']))
if (args['pagination.reverse'] != null) query.append("pagination.reverse", String(args['pagination.reverse']))

const url = `${baseUrl.replace(/\/+$/, '')}/cosmos/gov/v1beta1/proposals${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiCosmosGovV1beta1ProposalsResponse, await res.json())
};